The seed stimulant effect of nano iron pyrite is compromised by nano cerium oxide: regulation by the trace ionic species generated in the aqueous suspension of iron pyrite

Das, Chandan K.; Srivastava, Gaurav; Dubey, Amarish; Verma, Shourya; Saxena, Manav; Roy, Madhumita; Sethy, Niroj Kumar; Bhargava, Kalpana; Singh, Sushil Kumar; Sarkar, Sabyasachi; Philip, Deepu; Das, Mainak

doi:10.1039/c6ra15584g

Cited by 25 publications

(37 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pyrite has wide area of applications (Figure ) such as energy storage and conversion field: photovoltaics,, photocatalytic hydrogen production, batteries, supercapacitors, photocapacitors, thermoelectricity;, electronics,, optoelectronics, spintronics; environmental applications; hydrogenation; sensors; agriculture, and emerging biomedical field …”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Pyrite for Photovoltaic Applications

et al. 2018

View full text Add to dashboard Cite

Transition metal sulfides (TMSs) are of special interest in energy conversion and storage devices. Amongst all sulfides, fool's gold or iron pyrite (FeS 2 ) is potentially an attractive candidate for photovoltaic applications. Iron pyrite has risen to prominence due to its distinct properties and abundance in nature to meet the large scale needs. It is considered as environmentally benign solar absorber material with high absorption coefficient, α > 6 x10 5 cm À 1 for λ � 700 nm and suitable energy bandgap (E g = 0.95 eV). Numerous physical and chemical methods have been employed to deposit nanocrystalline pyrite thin films directly from source materials or indirectly by sulfuration. This review gives an overview of pyrite as a low cost photovoltaic absorber material for contemporary solar cell structures. In addition, practical approaches like the rational design of nanocomposites, band gap engineering and nanostructure synthesis of pyrite for improving its properties particularly photovoltaic properties are also deliberated. Moreover, limitations, challenges, remedies and prospects of pyrite as potential photovoltaic material are also reviewed to further advance the development of pyrite-based solar cell configurations.[a] Dr.at a low precursor concentration, pyrite nanocubes (125-250 nm in 20-180 min) were obtained due to low nuclei concentration and slow growth (diffusion limited) in quasiequilibrium. The anisotropic structures nanodendrites were 2 3 4 5 6 7 8

show abstract

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Pyrite for Photovoltaic Applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In their study, they found the increasing dose‐dependent effect of Fe 2 O 3 NPs on the spinach plants. Likewise, Das et al [30] investigated the seed stimulant effect of nano iron pyrite (FeS 2 ) and nano cerium oxide (CeO 2 ) in the regulation of trace ionic species generated in the aqueous suspension of iron pyrite. They also found that it delays germination of seeds, whereas FeS 2 hastens germination.…”

Section: Introductionmentioning

confidence: 99%

“…Several researchers have reported not only phytotoxicity and accumulation of NPs but also growth promoting effects [22, 24, 25, 27, 31]. Considering the toxicity issue, an alternative to synthetic fertilisers in agricultural system is necessary to maintain ecosystems and to develop sustainable agriculture [30].…”

Section: Introductionmentioning

confidence: 99%

Biogenic copper nanoparticles promote the growth of pigeon pea ( Cajanus cajan L.)

Shende

Rathod

Gade

et al. 2017

IET nanobiotechnol.

View full text Add to dashboard Cite

Environmental pollution and toxicity have been increasing due to the overuse of chemical fertilisers, which has encouraged nanotechnologists to develop eco-friendly nano-biofertilisers. The authors demonstrated the effect of biogenic copper nanoparticles (CuNPs) on the growth of pigeon pea (Cajanus cajan L.). The UV-visible analysis showed absorbance at 615 nm. Nanoparticle tracking and analysis revealed particle concentration of 2.18 × 10 8 particles/ml, with an average size of 33 nm. Zeta potential was found to be −16.7 mV, which showed stability. X-ray diffraction pattern depicted the face centred cubic structure of CuNPs; Fourier transform infrared spectroscopy demonstrated the capping due to acidic groups, and transmission electron micrograph showed nanoparticles with size 20-30 nm. The effect of CuNPs (20 ppm) on plant growth was studied, for the absorption of CuNPs by plants on photosynthesis, which was evaluated by measuring chlorophyll a fluorescence using Handy-Plant Efficiency Analyser. CuNPs treatment showed a remarkable increase in height, root length, fresh and dry weights and performance index of seedlings. The overall growth of plants treated with CuNPs after 4 weeks was recorded. The results revealed that inoculation of CuNPs contribute growth and development of pigeon pea due to growth promoting activity of CuNPs.

show abstract

“…Spinach treated with nano iron pyrite (FeS2) increased the germination whereas and CeO2 delayed the germination [19]. MWCNTs improved germination by 90% in two days as against 71% in untreated samples [20]. Rice seeds treated with nano-CuO reduced the germination [21].…”

Section: Nanoparticles For Seed Germination Plant Growth Yield and Qu...mentioning

confidence: 99%

Nanotechnology: its scope in agriculture

Reddy

Chhabra

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The growth in human population is estimated to reach 9.8 billion by mid-2050. To meet the food requirements, reducing the judicious use of fertilizers, agrochemicals and their impact on environment, soil, water, humans and the surrounding biodiversity we have to shift towards sustainable methods. Nanotechnology is one such technology that will help in crop production by improving the input use efficiency by minimizing their losses, site-specific, controlled delivery of fertilizers or agrochemical as per the requirement, increases shelf life, efficiency of the agrochemicals and reduces their recommended dosage. Nanoparticles are organic, inorganic or hybrid materials whose dimensions may range from 1 to 100 nm. Nanosensors can detect environmental stress and enhance the plant’s ability to combat diseases, used in automation of irrigation; it is a rapid and accurate tool to detect insect and pest, which helps in timely application of agrochemicals. Nano-iron fertilizer was found to improve essential oil content, nano-zinc and boron fertilizers improved fruit yield and quality, nano zeolite can sustain the nutrients in the soil for long term and it enhance germination and plant growth. As nanoparticles enhances growth, they aid in early maturity of the crop, improves the plant’s ability to tolerate stresses, hence they are effective tools in drought and flood-prone areas, they detoxify harmful pollutants especially heavy metals, pesticide residues. As nanoparticles have greater persistence, they may have long-term effect on plants, humans and also environment, but it has less impact than that of the normal agrochemicals. Advanced research is required to conclude in this aspect.

show abstract

The seed stimulant effect of nano iron pyrite is compromised by nano cerium oxide: regulation by the trace ionic species generated in the aqueous suspension of iron pyrite

Abstract: A brief seed pretreatment of 12 hours, in an aqueous suspension of synthesized nano iron pyrite (FeS2), significantly increases the yield of spinach and other crops.

Cited by 25 publications

References 25 publications

Nanocrystalline Pyrite for Photovoltaic Applications

Nanocrystalline Pyrite for Photovoltaic Applications

Biogenic copper nanoparticles promote the growth of pigeon pea ( Cajanus cajan L.)

Nanotechnology: its scope in agriculture

Contact Info

Product

Resources

About